厦门岛东部和闽江口沿岸经济贝类中持久性有机氯农药和多氯联苯的残留水平  

Residue levels of persistent organochlorine pesticides and polychlorinated biphenyls in shellfish samples from eastern Xiamen Island and Minjiang Estuary

作　　者：陈伟琪[1] 张珞平[1] 王新红[1] 洪丽玉[1] 洪华生[1] 

机构地区：[1]厦门大学海洋环境科学教育部重点实验室,厦门大学环境科学研究中心,福建厦门361005

出　　处：《台湾海峡》2001年第3期329-334,共6页Journal of Oceanography In Taiwan Strait

摘　　要：1 995～ 1 996年间 ,在厦门岛东部和闽江口沿岸养殖区的 7个站点采集了贝类样品 .样品先去壳匀浆 ,再经冷冻干燥、萃取浓缩和净化分离后 ,用GC法分析测定其六六六 (HCHs)、滴滴涕 (DDTs)和多氯联苯 (PCBs)的含量 .厦门岛东部HCHs、DDTs和PCBs的含量范围分别为 0 .1 8～ 34 5,75.2～ 2 1 43,ND 2 34ng/g干重 ;闽江口分别为ND - 5.0 7,2 1 .5～ 2 396 ,ND - 6 .78ng/g干重 .结果表明 ,贝类样品的有机氯污染物含量因不同采样地点、不同生物种类及不同采样时间而异 ,但总体上高于沉积物 ,牡蛎对DDT的富集尤为显著 .本文除了对调研区经济贝类的HCHs、DDTs和PCBs含量与组成分布进行分析评价 ,还就海区有机氯污染生物监测的可行性、经济贝类的食用卫生水平等问题作了探讨 .Shellfish samples were collected from 7 stations set in the coastal cultivating areas of eastern Xiamen Island and Minjing Estuary during 1995～1996. The samples were shelled and blended to paste, then freeze dried, extracted, concentrated, cleaned up and fractionated successively, afterward were analyzed for HCHs, DDTs and PCBs by GC. Concentration ranges of HCHs, DDTs and PCBs in the survey area of eastern Xiamen Island were 0.18-345, 75.2-2143 and ND-234 ng/g dry wt., respectively; those for Minjiang Estuary were ND-5.07, 21.5 -2 396 ND-6.78 ng/g dry wt., respectively. The results showed that the concentrations of organocholorine pollutants in shellfish samples varied with the sampling locations, time of collection and organism species, but were generally higher than those in sediments, especially for oyster. The concentrations and compositions of HCHs, DDTs and PCBs in the economic shellfish collected from the coastal cultivating areas of east Xiamen Island and Minjiang Estuary were analyzed and evaluated, besides, the feasibility of monitoring organochlorine pollutants using marine organisms, the hygienic level of the edible economic shellfish and so on were discussed.

关 键 词：福建沿海 经济贝类 有机氯污染物 残留量 农药 多氯联苯 

分 类 号：S944.4[农业科学—水产养殖] X503.225[农业科学—水产科学]